Since ancient times, ginger has been a good product for both medicine and food for our working people. According to Chinese medicine, ginger can sweat and relieve symptoms, warm up and stop vomiting, and detoxify the poison of half-xia, south star, fish and crab. In ancient books, there are many records on the efficacy of ginger, such as the “food herbs” cloud: “Sun really cloud, ginger for vomiting home holy medicine. Covering the pungent to disperse the, vomiting is a gas rebellion does not disperse, this drug line Yang and disperse the gas. The common saying bed turnip bed ginger, ginger can open the stomach, turnip also eliminates food.” The medicinal nature of the fugue cloud: taste pungent, warm, non-toxic. Rise also, yang also. Its use has four: the system of half summer has the function of detoxification, adjuvant jujube has thick intestine said. Warm up the wind of the surface evil, benefit the gas to stop the retching of the stomach turn.” The materia medica Tujing cloud: “to ginger cut fine, and good tea one or two bowls, any sip of it, dysentery great! Hot dysentery stay ginger skin, cold dysentery go skin.” Ginger is common, and a wide range of medicinal uses, so our folklore also spread the story of ginger in medicine show miraculous results. Legend has it that a long time ago, the heavenly palace doctor Lu Dongbin had dressed up as a wandering Taoist to folk medicine, one day, he passed by a village, see a roadside granny hand covering the stomach rolled God, that is, from the gourd poured out 3 pills to the granny to take, but unexpectedly, the granny after taking the medicine not only does not work, but more deteriorated, Lu Chunyang anxious sweating, helpless. At this time, a white-haired old man barefoot to the sound, reaching out to touch the forehead of the granny, and take the pulse and said, “is wind-cold attack heart, I take some medicine immediately.” He took a hoe to the back of the house and dug up a small green leafy herb, sliced the yellow lump of its root with water, boiled it and put brown sugar on it, and let the old woman drink it, and after she drank it, she immediately sweated all around and her abdominal pain disappeared. The old woman praised, “Old man Jiang, you are really good, the medicine is more spiritual than the immortal Lu in heaven.” Seeing that the old woman held the old man so high, Lu Dongbin was so angry that he was trembling and determined to take revenge on him. He transformed a fire-red refining viper into a big turtle and made it crawl towards old man Jiang. The old man killed the big turtle, cooked it at home and served it with wine. Lv Chunyang was pleased with himself and waited for the news of old man Jiang’s poisoning, but he was not poisoned, but became more and more energetic. He was so impressed that he went to ask what happened. Old man Jiang smiled and said, “What are you afraid of turtle, three pieces of yellow ginger to solve a hundred poisons.” After saying this, he took out a piece of yellow stuff, which was the medicine he had given to the old lady. Lu Dongbin was so convinced that he poured all the medicine in his gourd and vowed not to come back to earth to show his medical skills. From this legend, we can see that our ancient people have a certain understanding of the medicinal value of ginger, and often used in clinical treatment of diseases. Today, with the increasing development of technology, our contemporary people have a new understanding of the efficacy of ginger. The current analysis of the components of ginger using contemporary technology has revealed the presence of curcumin in ginger. Curcumin not only has antioxidant and free radical scavenging effects, but also has anti-mutagenic effects, which is why ginger has been found to have cancer prevention properties. Of course, everything should be done in moderation, the “Compendium of Materia Medica” cloud: “ginger, eat for a long time, the accumulation of heat suffering from eyes. Hemorrhoids, canker sores are not to eat more.” The U.S. Food and Drug Administration has also found that ginger contains safrole, which has the risk of causing liver cancer, so excessive consumption of ginger is likely to increase the risk of liver cancer. In addition, rotten ginger produces toxins that can also cause cancer, some people think that “rotten ginger does not taste bad”, this idea is not based on science, but also very dangerous. This is because rotten ginger can produce toxins that can lead to liver and esophageal cancer in serious cases. Ginger has a wide range of effects, the rational use of ginger will make our body healthier, ginger can fight cancer, but we should also be rational, the appropriate amount and appropriate to take in order to play the wonders of ginger.